katie. >> lisa, thank you. as cold as it is in the bay area, it's much worse in other parts of the country. roads are treacherous. this video in downtown dallas, texas. powerlines down and flights are cancelled with mor here's chuck severson. >> at least 16 people have died in the severe freeze gripping much of the u.s. many of the winter storm victims died on slick roads, including the driver of a pickup truck that hit an icy patch of ice on this bridge in louisville, texas. the car spun out of control and flipped over the guardrail into the water below. rescue crews braved freezing temperatures to get to the car. only 17-degree temperature. they had to get dry suits on and get down there and lift it up. >> rews spent hours trying that turned from rain to sleet and snow and some places black ice, forcing cs to slow down. backing up traffic for miles and flipping over trucks. road conditions so treacherous people were walking instead of driving to work. >> unlike the back roads and in the neighborhoods, it's re